When vomiting and heartburn occur after exercise, the decision to seek medical attention needs to be made on a case-by-case basis. If post-exercise vomiting and heartburn are transient, they are usually caused by too much exercise and can be recovered with rest. However, if the heartburn does not decrease after rest, you need to seek medical attention from a gastroenterologist as soon as possible to determine if the mucosa of the digestive tract is damaged.